SLVUCU8 January   2024

 

  1.   1
  2.    TPS54KC23EVM 30-A, Regulator Evaluation Module
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  5. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Frequency and Operation Mode Setting (MSEL Pin)
  6. 3Test Setup and Results
    1. 3.1 Input/Output Connections
    2. 3.2 Efficiency
    3. 3.3 Output Voltage Regulation
    4. 3.4 Load Transient and Loop Response
    5. 3.5 Output Voltage Ripple
    6. 3.6 Start-up and Shutdown with EN
    7. 3.7 Thermal Performance
  7. 4Board Layout
    1. 4.1 Layout
  8. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

1.3 Performance Characteristics Summary

A summary of the TPS54KC23EVM performance characteristics is provided in Table 1-2 and Table 1-3. The TPS54KC23EVM is designed and tested for VIN = 8 V to 16 V for U1 and VIN = 4.5 V to 16 V for U2. Characteristics are given for an input voltage of VIN = 12 V and output voltage of 0.8 V, unless otherwise specified. The ambient temperature is room temperature (20°C to 25°C) for all measurements, unless otherwise noted.

Table 1-2 TPS54KC23EVM Small Size (U1) Performance Characteristics Summary
SPECIFICATIONTEST CONDITIONSMINTYPMAXUNIT
VIN voltage range81216V
Input currentVIN = 8 V, IO = 30 A3.9A
VIN start voltageSet by EN pin resistor divider7.18V
VIN stop voltageSet by EN pin resistor divider5.98V
Output voltage setpoint0.802V
Output current rangeVIN = 8 V to 16 V030A
Line and load regulationVIN = 8 V to 16 V, IOUT = 0 A to 30 A±0.31%
Load transient responseIOUT = 5 A to 20 AVoltage change-15mV
Recovery time68µs
IOUT = 5 A to 20 AVoltage change20mV
Recovery time64µs
Input ripple voltageIOUT = 30 A864mVPP
Output ripple voltageIOUT = 30 A20mVPP
Output rise timeSet by SS pin capacitor139μs
Current limitSet by ILIM pin resistor30.6A
Switching frequency (fSW)Set by MSEL pin resistor1400kHz
Peak efficiencyIOUT = 15 A83.3%
IC case temperatureIOUT = 30 A, 15-minute soak128°C
Table 1-3 TPS54KC23EVM High Efficiency (U2) Performance Characteristics Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
VIN voltage range 4.5 12 16 V
Input current VIN = 4.5 V, IOUT = 30 A 6.5 A
VIN start voltage Set by EN pin resistor divider 3.84 V
VIN stop voltage Set by EN pin resistor divider 3.20 V
Output voltage setpoint 0.802 V
Output current range VIN = 4.5 V to 16 V 0 30 A
Line and load regulation VIN = 4.5 V to 16 V, IOUT = 0 A to 30 A ±0.4%
Load transient response IOUT = 5 A to 20 A Voltage change –4 mV
Recovery time 54 µs
IOUT = 5 A to 20 A Voltage change 4 mV
Recovery time 55 µs
Input ripple voltage IOUT = 30 A 472 mVPP
Output ripple voltage IOUT = 30 A 4.8 mVPP
Output rise time Set by SS pin capacitor 944 μs
Current limit Set by ILIM pin resistor 30.6 A
Switching frequency (fSW) Set by MSEL pin resistor, J8 short pins 3 and 4 800 kHz
Peak efficiency IOUT = 8 A 89.1 %
IC case temperature IOUT = 30 A, 15-minute soak 97 °C